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应用经典热力学理论建立了溶液表面蒸汽压的计算模型,获得了氯化锂溶液的表面蒸汽压随温度及浓度的变化规律;建立了氯化锂溶液表面蒸汽压测量实验台,实验测量结果与理论模型完全符合,验证了本文结果的正确性.“,”The classical thermodynamics theory was used to establish the calculation model of the saturated surface vapor pressure of the solution composed by water and lithium chloride to obtain the variation about the surface vapor pressure of lithium chloride with temperature and concentration. The experimental system was built to measure the surface vapor pressure of lithium chloride.The experimental result was agreed with the theoretical calculation.